JP3780838B2 - Green power supply system and green power supply method - Google Patents

Abstract

To permit a customer to reduce environmental load without reducing their electric power, a green power supply system is provided which includes a power supply request acceptance part which accepts from a customer a request to supply power having small environmental loads to the customer, a storage-of-power-supply-content requesting part which stores the state of power supply from each power generation facility, a green degree calculating part which determines the proportion of power which is supplied from the power generation facility having the small environmental loads, in power supplied to the customer, and a customer-directed green-degree notification part which notifies the customer of the degree of environmental load.

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power supply system, and more particularly, to a system and a method by which a customer can select power.
[0002]
[Prior art]
As a conventional technique related to a technique for supplying electric power to a consumer based on a desired condition of the consumer, there is “a selection method and a selection support system of an electric power company” described in Japanese Patent Application Laid-Open No. 2000-78747.
[0003]
In the prior art, when the charge system is different for each electric power company, the electric power companies select according to the desired conditions and present a combination of the selected contract conditions.
[0004]
[Problems to be solved by the invention]
In this conventional technique, only a selection method in consideration of the price of electric power is provided for consumers. Electric energy is indispensable for the development of industry and life, and the energy required to generate the electricity will not be lost no matter how much it is used, and environmentally friendly ones are particularly required.
[0005]
For example, solar power, wind power, small-scale hydropower that does not use dams, biomass (biological resources) such as wood waste, straw, and livestock waste, geothermal heat transmitted from magma deep underground, waste heat utilization in factories, etc., and burning garbage There is waste.
[0006]
On the other hand, fossil fuels such as oil, coal, and natural gas, and uranium are limited in resources and will disappear sometime if they continue to be used. In addition, if fossil fuel is burned, carbon dioxide (CO ₂ ), which causes global warming, is generated. Nuclear power remains radioactive waste that requires high reliability in handling. Large-scale hydropower generation can destroy surrounding ecosystems due to dam construction.
[0007]
The main component of the biomass described above is wood, and CO ₂ is generated when it is burned, but living trees absorb CO ₂ during photosynthesis. By planting only the amount of fire and keeping the area of the forest, CO _{2 in} the atmosphere can be maintained, so it is a green power generation energy that does not cause problems of environmental load and resource depletion.
[0008]
As described above, even when the same amount of power is generated, the impact on the environment and the degree of global resource depletion vary greatly depending on the type of energy required for the power generation.
[0009]
Conventionally, the influence degree of the environmental impact of the power supplied to the customer, i.e. the degree of exhaustion of emissions and the energy source of CO ₂ based on the difference in the energy source required for the power generation did not know for consumers. In other words, until now, there has been only a method for reducing the amount of electric power through energy saving, and there have been few options as concrete measures for maintaining a beautiful earth.
[0010]
An object of the present invention is to provide a power supply system and method for solving the above-described problems and allowing consumers to consider environmental load and resource depletion while consuming power and maintaining economic activities. .
[0011]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, a power supply request accepting unit that accepts a power supply request from a power generation facility that uses power generation energy with a low global environmental load and resource depletion, and a power supply for each power generation facility Power supply content storage requesting means for storing the state, and power generation using power generation energy with a small global environmental load and resource depletion in response to the request among the power supplied to consumers according to the power supply state of the power generation facility The green degree calculation means for determining the proportion of power from the facility, and the proportion of power from the power generation facility that uses power generation energy with low global environmental load and resource depletion among the power used by the customer. The green degree notifying means for notifying the user is provided.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a green power supply system and method according to the present invention will be described below in detail with reference to the drawings.
[0013]
An embodiment of the present invention will be described with reference to FIGS. Power generation energy used in power generation facilities includes sunlight, wind power, tidal power, small-scale hydropower that does not use dams, biomass (biological resources), geothermal heat, waste heat utilization, waste-burning waste, oil, Typical examples include fossil fuels such as coal and natural gas, and uranium, which have different effects on the global environmental load and potential for resource depletion.
[0014]
As representative examples of power generation energy sources used in the power generation facility 100, power generation facilities using sunlight, wind power, fossil fuel, and uranium fuel are indicated by 100a, 100b, 100c, and 100d, respectively. The energy source used in the present invention is not necessarily limited to these fuels.
[0015]
The generated electric power passes from the power generation facilities 100 through the power generation facility transmission lines 200, through the transmission / distribution power system 300, through the customer distribution lines 400, and to the consumers A to D, that is, 500a, 500b, 500c. , 500d. The number of consumers is not particularly limited, and may be a plurality of consumers.
[0016]
In the figure, for the sake of simplicity, only the transmission lines and distribution lines connected to the transmission / distribution power system 300, the power generation facility 100a, and the customer 500a are represented by the numbers 200 and 400. Transmission lines and distribution lines are installed.
[0017]
As a communication between the measurement measuring devices 110a to 110d and 510a to 510d that can measure the amount of power generated by the power generation facilities 100a to 100d and the amount of power consumed by the consumers 500a to 500d, the power generation measuring system 120 A power demand measuring system 530 is provided. There is no particular limitation on the communication method, such as whether the power generation measurement system 120 and the demand power measurement system 530 are wired or wireless, or the use of a dedicated line or the Internet line, as long as information can be communicated.
[0018]
As shown in FIG. 1, the green power supply system 1a according to the present embodiment includes a power supply request accepting unit 630, a power supply content storage requesting unit 610, a green degree calculating unit 620, and a consumer green degree notifying unit 640. The
[0019]
As shown in FIG. 2, the power supply content storage request unit 610 includes a power content storage unit 610a, a power generation request amount determination unit 610b, and a power supply request unit 610c.
[0020]
The green degree calculating means 620 includes a power generation amount receiving means 620 a connected to the power generation measuring system 120 and a power consumption receiving means 620 b connected to the demand power measuring system 530. The green degree determination unit 620c is connected to the power generation amount reception unit 620a and the power consumption reception unit 620b, and grasps the power generation amount generated at each power generation facility 100 and the power consumption amount used by each customer 500. To do.
[0021]
The consumers 500a to 500d can request the supply of electric power by selecting the power generation facility 100 for each power generation energy source in consideration of the influence on the global environmental load with respect to the green power supply system 1a of the present embodiment. The power supply request is received by the power supply request receiving means 630 via the customer information route 520.
[0022]
On the other hand, the power supply content for each power generation facility 100a to 100d delivered via the power generation facility information route 130 is the power content in the power supply content storage requesting means 610 together with the power supply request content from the consumer. It is always stored in the storage means 610a. The power generation request amount determination unit 610b compares the power supply content stored in the power content storage unit 610a with the power supply request content so that the difference between the power demand and the supply is always within a certain range. The amount of power supplied to the electric wire 200 is determined. Based on the determination of the power generation request amount determination means 610b, the power supply request means 610c requests the power generation facilities 100a to 100d to generate power as needed.
[0023]
Mutual information communication between the power generation facilities 100a to 100d and the green power supply system 1a is performed via the power generation facility information route 130. The power generation facility information route 130 is wired or wireless, or is a dedicated line or an internet line. There is no specific communication method.
[0024]
The amount of power passing through each power generation facility transmission line 200 and the customer distribution line 400 is measured by the measurement measuring devices 110a to 110d and 510a to 510d, and the power generation amount receiving means 620a in the green degree calculation means 620 and the power consumption, respectively. It is received by the amount receiving means 620b.
[0025]
The green degree determination means 620c includes the amount of power transmitted to the green degree calculation means 620, output information from the power supply content storage request means 610 transmitted via the power generation facility information route 130, and customer information. Based on the above, the green level for the power to be supplied and supplied to the consumer is calculated.
[0026]
As one of the output information from the power supply content storage requesting means 610, in the case of a power generation facility using a fossil fuel, for example, a detailed type of power generation energy source for each power generation facility, The composition and the like are useful in determining the green degree.
[0027]
This degree of green indicates a scale that represents the impact on the environmental load and resource depletion based on the proportion of power from power generation facilities with a low global environmental load.
[0028]
Thereafter, the green degree notifying unit 640 for consumers notifies each of the consumers 500a to 500d of the green degree for each consumer. This notification may include not only the green level of the consumed power but also the customer request content, the scheduled content, and the actual content. This notification is performed via the customer information route 520.
[0029]
In the present embodiment, each customer 500a to 500d considers the environmental load required for power generation and the effect of resource depletion, that is, the degree of green determined depending on the power generation facility or each power generation facility, in addition to the necessary power amount. The power source can be selected. Furthermore, since each consumer 500a-500d can grasp | ascertain the green degree of the electric power in addition to the electric energy consumed by the consumer, the concrete contribution from the consumer side for maintaining a beautiful earth is realizable. In addition, since the green power supply system of the present invention is spread all over the world, it is possible to produce an effect that the earth's environmental conservation and resource depletion can be suppressed.
[0030]
A green power supply system 1b according to another embodiment of the present invention will be described with reference to FIG. The green degree determined by the green degree determining means 620c in the green degree calculating means 620 is disclosed to 900a to 900c of the third party 900 by the third party green degree notifying means 680 via the Internet 800. The
[0031]
In this embodiment, in addition to communicating the green level to the consumer, a third party directly connected to the consumer's economic activity, for example, the green level of the power consumed by the customer to the customer of the product produced from the consumer. Can be published.
[0032]
In general, the cost of power generation using a naturally-friendly power generation energy source with a low environmental load is high, which has been an obstacle to its spread. In the present embodiment, by utilizing the Internet 800, it is possible to appeal to customers of consumer products about the attitude of the customer to prevent environmental deterioration and resource depletion. And it can reflect in the increase in the quantity of the product which each customer purchases, and the green premium price, As a result, the effect which can maintain the continuity of a consumer's economic activity is produced. According to this embodiment, a customer who is a third party in addition to a consumer can realize a selection method that contributes to reducing environmental load and preventing resource depletion.
[0033]
A green power supply system 1c according to another embodiment of the present invention will be described with reference to FIG. Based on the green degree determined by the green degree determining means 620c in the green degree calculating means 620, the green power authentication determining means 660 authenticates the green power. The result is disclosed by the green power authentication information notifying means 670 to the customer 500 via the Internet 800 via the third party 900 900 a to 900 c and the customer information route 520.
[0034]
In this embodiment, the green power authentication determining means 660 is configured in the green power supply system 1c, but may be provided in a third party, for example, a public organization. In this case, providing the green power authentication application means and the green power authentication acceptance means in the public organization is also included in the present embodiment.
[0035]
Furthermore, an embodiment in which a means for delivering green information obtained by the green degree determination means 620c and the green power authentication determination means 660 to the power generation facility 100 and a means for making the information public to the third party via the Internet are included in the present invention. As a result, by displaying the contents of efforts to reduce environmental impact and preventing resource depletion on the power generation facility and to disclose it to third parties via the Internet, it is possible to promote the local residents and coexist with society. Moreover, in the green power supply system of the present invention, power generation facilities and customers can objectively evaluate and quantify the effect from the authentication information of the efforts to reduce environmental load and prevent resource depletion, so it is based on the ISO14000 series , Can specifically contribute to activities to create, implement, achieve, review and maintain the organization's environmental policy. Also, by labeling the product with green degree display and green power authentication information, a third-party customer can select and purchase green products, thereby producing an effect that can contribute to reducing environmental load and preventing resource depletion.
[0036]
A green power supply system 1d according to another embodiment of the present invention will be described with reference to FIG. The green degree determined by the green degree determining means 620c, the power generation facility and customer information, and the power consumption information are sent to a third party organization such as a national or local public organization, and a green power subsidy is applied. In a system in which tax is partially exempted, the power supply request accepting means 630 accepts information for each consumer necessary for tax exemption, such as consumer income and tax payment details, and sends these information to the third party organization. Send. From the subsidy information and the consumer power consumption information sent from the third party organization, the electricity charge determination notification means 650 for the consumer determines the electricity charge, and the contents are determined through the consumer information route 530. The customer 500 is notified. In this embodiment, since it is possible to provide economic support directly to the customer 500, that is, a discount service for electric power charges, an effect of accelerating the spread is produced. As means for realizing the present invention, it is necessary to supply power stably in consideration of frequency, voltage, and harmonic generation rate. For example, Japanese Patent Application Laid-Open No. 11-308771 discloses a technique for this purpose. It is sufficient to use the technology of the power supply control device that is used, which is omitted here. Moreover, although the power generation facility is not included in the green power supply system of the present invention, a private power generation facility may be included in the system of the present invention. Furthermore, the present invention also includes a service providing means for buying and selling the best mix in terms of the amount of green power and its greenness and price for each time period and time period by using the Internet for information communication between power generation facilities and consumers. It is.
[0037]
An embodiment of the green power supply method of the present invention will be described in detail with reference to FIG. There are a plurality of power generation facilities with different power generation energy and a plurality of consumers who want power. The power generated at these facilities passes through the transmission lines provided for each power generation facility, passes through the transmission / distribution power system, and is supplied to each customer through customer distribution lines. The amount of power for each home facility is measured. In this case, in order to achieve a stable supply by maintaining the quality of electric power to prevent malfunctions of electrical products due to power outages or voltage drops, supply power (electric power generated at the power generation facility) in a certain period (30 minutes) The amount of power generation is controlled so that the total of power loss due to power transmission and distribution is maintained within a certain percentage (usually about ± 2%) of the total amount of power consumed by consumers. .
[0038]
Even in this embodiment, stable supply to consumers is given top priority. Consumers want to supply electricity with low environmental impact caused by power generation (clean) and low price. However, the cost of generating clean power is generally high, and it has a feature that supply is unstable when using natural energy. From each consumer, a request for power supply is received at regular intervals, including the time of consumption, the amount of power consumed for the time period, and the ratio of the global environmental load, that is, the green level and the power price.
[0039]
In this case, it is necessary to frequently communicate power supply requests, and to communicate information such as green degree and billing in real time almost in real time, and the number of consumers is enormous and scattered in regions. Therefore, as in the communication between each power generation facility and the green power supply system, a method using the Internet is inexpensive and convenient. In particular, in the case of using the Internet, it is possible to realize security maintenance such as information leakage by a publicly known technique for devising a party authentication method and installing a firewall. In the following description, descriptions of methods that can be realized by known techniques such as computer startup and authentication methods when using the Internet are omitted.
[0040]
Among the power generation energy, the power generation using natural energy such as wind power and solar power has an inexhaustible energy on a global scale, but has a drawback that stable power generation is impossible throughout the year. The power generation cost also varies depending on the generated energy. For power generation facilities and consumers, a selection menu that combines the amount of electricity, price, and greenness for each time zone is made public (1) (2) ((1) (2) in the figure, and so on).
[0041]
As a method for realizing this, a method of publishing on the Internet is also suitable. An example of the screen presented to the consumer is shown in FIG. The pie chart in the center of the figure shows the percentage of power generated at the power generation facilities listed on the left side of the pie chart. The content of the proposal will change when the plan is selected for the power ratio. The time zone can be selected from the bottom time chart. On the right side of the pie chart, the price estimated based on the proposal and the expected green level of the proposal are shown.
[0042]
From each power generation facility, specify the detailed type of power generation energy that is fuel at each time period and time zone, such as CO ₂ emissions per unit output, the amount of power generation that can be supplied, the allowable price range, and the name of the power generation facility. Power generation information is delivered (3). Similar request information is delivered from the customer (4).
[0043]
Supplying power generation facility transmission lines so that the difference between the demand and the supply is always within a certain range at regular time intervals (for example, 30 minutes) while comparing the power supply content and the power supply request content in almost real time. Determine the amount of power and request power generation for each power generation facility as needed (5). Since the highest priority is given to the stable supply of power to consumers, it may not always be possible to supply the green power desired by the consumer, so supply the power generation request amount for each power generation facility to the consumer every time it is determined. The green level and price of the planned power are also notified to the customer along with the request from the customer (6).
[0044]
An example of a procedure for ensuring that the difference between supply and demand is always within a certain range will be described below. For convenience, the power loss of the transmission / distribution power system is described as zero.
[0045]
Here, the power generation amount of the power generation facility and the green level thereof are defined as WPi and BPi, respectively, and the power consumption amount of the consumer is defined as WPj and BCj. In addition, regarding the difference between acceptable demand and supply, the lower and upper rates of the power difference are (1−W _β ) and (1 + W _α ), respectively, and the lower and upper rates of the green degree are (1−W B _β ) and (1 + B _α ). As a result, the total amount of power generation is an amount obtained by adding the amount of power generated at each power generation facility, that is, the total amount of power generation = ΣWPi. Similarly, the total amount of power demand is represented by the total amount of power demand = ΣWCj.
[0046]
Further, the sum of products of the amount of power generated at each power generation facility and the green degree can be expressed as ΣWPi * BPi as the total amount of generated green, and similarly, the total amount of demand power green can be expressed as ΣWCj * BCj. An example of the procedure is shown below. It should be noted that the procedure for ensuring that both the customer side and the power generation facility side are within acceptable price ranges is omitted. As described above, these entire procedures are sequentially performed at intervals of about 30 minutes.
[0047]
(1) When Formula (1A) and Formula (1B) are satisfied at the same time, that is, when the amount of power and the total amount of green are within the allowable range, each power generation facility is requested to generate power at the received amount, and each customer is Send amount and green degree.
[0048]
1−W _β ≦ (ΣWPi) / (ΣWCj) ≦ 1 + W _α ――― (1A)
_{1B β ≦ (ΣWPi * BPi)} / (ΣWCj * BCj) ≦ 1 + B α - (1B)
(2) When Formula (1A) and Formula (1C) or Formula (1A) and Formula (1D) are satisfied at the same time, that is, when the electric energy is within the allowable range, but when the total amount of green is larger than the upper limit of the allowable range Considering the price, the power generation request power amount to the power generation facility is reviewed so that the formula (1B) is satisfied, and the result is requested to the power generation facility.
[0049]
(ΣWPi * BPi) / (ΣWCj * BCj) ≦ 1-B _β ――― (1C)
1 + B _α ≦ (ΣWPi * BPI) / (ΣWCj * BCj) --- (1D)
(3) When Expression (2A) is established, the highest priority is given to stable power supply, and a request to increase the amount of power generation is made to each power generator so as to satisfy Expression (1A). In this case, it selects so that Formula (1B) may be established as much as possible, and transmits the electric energy and green degree which are the result with each request | requirement to each consumer.
[0050]
(ΣWPi) / (ΣWCj) ≦ 1-W _β -(2A)
(4) When the formula (3A) is established, the power generator is requested to reduce the power generation amount so as to satisfy the formula (1A). In this case, it selects so that Formula (1B) may be satisfied as much as possible, and transmits the electric energy and green degree which are the result with each request | requirement to each consumer.
[0051]
1 + W _α ≦ (ΣWPi) / (ΣWCj) ―――― (3A)
On the other hand, for each power generation facility, the actual amount of power supplied to the transmission / distribution power system (7), the actual amount of power consumed by each customer (8), and the detailed types of energy generated by each power generation facility and the customer Based on the information, each customer is notified of the request contents while calculating the green degree as needed for the supply schedule and the supplied power (9). In addition, based on requests from power generation facilities and customers (10) (11), the cumulative value of this green degree, green power generation activities and power consumption activities, and commercialization and recycling of green power generated by those green power Green power certification is conducted by extracting specific power generation facilities and customers that have produced remarkable effects in terms of reducing environmental impacts for activities at individual stages. A method of requesting this certification to a certification authority on its behalf is also suitable. This green degree and the green certification information obtained from the certification body (15) and the obtained green certification information are received from the power generation facility and customer's request (13) (14), and the power generation facility and customer via the Internet. (16). In addition, the green degree display and green power certification information are labeled on the product.
[0052]
As a result, green products generated by customers are disclosed to their customers (16), and each customer purchases by appealing to the customer of the product's attitude to prevent environmental degradation and resource depletion (17). ) Increasing the sales volume and price of the product can be increased according to the degree of green, and the result will have the effect of environmental conservation while maintaining the continuity of consumers' economic activities. Furthermore, since the customer can select and purchase green products, the customer can have an option that can contribute to reducing environmental burden and preventing resource depletion. Subsidies and tax reductions will be provided by governments and public organizations to promote the generation and purchase of green electricity. Since the subsidy service for reducing subsidies and tax reduction services are almost the same method, examples of subsidies will be described in accordance with the request for power generation facilities and customers (18) (19). Based on the above, the agency (20) of the application to the subsidy provider is made, and as a result, the subsidy is paid (21), and the fee is paid to the power generation facility (22) in consideration of this subsidy. Billing (23) and payment (24) from consumers, and reducing environmental impacts and resources while enjoying economic benefits at all levels of power generation facilities, consumers, and commodity consumers. Produces an effect that can contribute to the prevention of depletion. In the case of requesting certification from a certification body, charges and payments may occur, which are not shown in FIG.
[0053]
Within the scope of the green supply system and method of the present invention, the Internet is fully used as a means of communicating information, targeting consumers of unspecified large numbers of small power and global power generation facilities as consumers. It is possible to form a green power trading market and contribute to environmental conservation and resource depletion on a global scale.
[0054]
【The invention's effect】
It is possible to provide a system and method capable of satisfying both the environmental load reduction and the continuity of economic activities of consumers.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a green power supply system.
FIG. 2 is a detailed explanatory diagram of a green power supply system.
FIG. 3 is an explanatory diagram of a system showing another embodiment of the present invention.
FIG. 4 is an explanatory diagram of a system showing another embodiment of the present invention.
FIG. 5 is an explanatory diagram of a system showing another embodiment of the present invention.
FIG. 6 is an explanatory diagram showing a flow and method of information.
FIG. 7 is a diagram illustrating an example of a screen presenting power supply contents selected by a consumer.
[Explanation of symbols]
1, 1a-d ... Green power supply system,
100, 100a to 100d ... power generation facility,
300 ... transmission and distribution power system,
500, 500a-d ... consumers,
610 ... Power content storage requesting means,
610a: Power content storage requesting means,
610b ... power generation request amount determination means,
610c ... Power supply request means,
620 ... Green degree calculation means,
620a ... means for receiving power generation amount,
620b ... power consumption acceptance means,
620c ... Green degree determination means,
630 ... Power supply request accepting means,
640 ... Green degree notification means for consumers,
650 ... Electricity rate determination notification means for consumers,
660 ... Green power certification determination means,
670 ... Green power authentication information notification means,
680 ... Green degree notification means for third parties,
800 ... Internet,
900 ... Third person.

Claims (6)

According to the power supply request accepting means for receiving a power supply request from the power generation facility with a small environmental load from the customer, the power supply content storage requesting means for storing the power supply state for each power generation facility, and the power supply state of the power generation facility A green degree calculating means for determining a proportion of power from a power generation facility with a small environmental load in response to the request among power supplied to a consumer, and from a power generation facility with a small environmental load among power used by a consumer by Yu and consumers for green degree notification means for notifying the ratio of power to the consumer, of the power of the consumers use, the percentage of power from small power generation facilities impact on the environment, the first to notify the third party A green power supply system characterized by providing a green degree notification means for three parties . According to the power supply request accepting means for receiving a power supply request from the power generation facility with a small environmental load from the customer, the power supply content storage requesting means for storing the power supply state for each power generation facility, and the power supply state of the power generation facility A green degree calculating means for determining a proportion of power from a power generation facility with a small environmental load in response to the request among power supplied to a consumer, and from a power generation facility with a small environmental load among power used by a consumer A green degree notification means for consumers to notify consumers of the proportion of electricity in the environment, and based on the proportion of electricity used by consumers from power generation facilities with a small environmental load, Green power certification determination means for evaluating and authenticating conservation and improvement efforts, and green power for notifying consumers and third parties of green power certification information determined by the green power certification determination means Green power supply system, characterized in that a witness information notifying means. According to the power supply request accepting means for receiving a power supply request from the power generation facility with a small environmental load from the customer, the power supply content storage requesting means for storing the power supply state for each power generation facility, and the power supply state of the power generation facility A green degree calculating means for determining a proportion of power from a power generation facility with a small environmental load in response to the request among power supplied to a consumer, and from a power generation facility with a small environmental load among power used by a consumer Green subsidy that is calculated based on the proportion of electricity from power generation facilities with a small environmental load out of the electricity used by consumers. A green power supply system characterized in that a power charge notification means for a consumer for notifying a consumer of a power charge in consideration of gold information is provided . Sequential power supply so that the difference in power consumption considering the environmental load is within a certain range by comparing the power supply requirements from the power generation facility with low environmental load with the power supply content from power generation facilities with different power generation energy In addition to controlling the requested amount, in response to the request among the electric power supplied to the consumer, the green degree calculated from the ratio of the electric power from the power generation facility with a small environmental load is determined and notified to the consumer. A green power supply method comprising: determining green authentication from a cumulative result of green degree, and notifying the green degree or green authentication information using the Internet . Sequential power supply so that the difference in power consumption considering the environmental load is within a certain range by comparing the power supply requirements from the power generation facility with low environmental load with the power supply content from power generation facilities with different power generation energy In addition to controlling the requested amount, in response to the request among the power supplied to the consumer, determine the green degree calculated from the proportion of power from the power generation facility with a small environmental load, and notify the consumer, In addition , the green power supply method is characterized by charging a charge to a consumer in consideration of the green level.   A power generation facility that generates power to be supplied, a display unit that displays the power generation energy source, a display unit that displays a power supply ratio from the power generation facility according to a request, and a power charge based on the requested power supply ratio And a display unit that displays a power ratio from a power generation facility that uses a power generation energy source with a small environmental load based on the selected power supply ratio, and the power supply ratio and the environmental load are determined according to the selected time zone. A supply power selection system that changes the display of power ratios from power generation facilities that use small power sources.

Images